i wouldnt use those plans unless i had access to free material. for a motor you want at least 1 1/2 h.p. i dont know about that controller. it says it's for machinery. i hope someone else who knows more than me chimes in because that thing has got me curious too. i've been hoping china would produce a simple speed controller instead of a digital/programmable vfd to compete with the k-bac 27d that costs 350-$400.